The Perfect Chance to Kill the Monster, Steal the Treasure, and Stab Your Buddy! Steve Jackson Games and Games Workshop brought Munchkin and Warhammer 40,000 together to create a perfect fusion of the two games with Munchkin Warhammer 40,000 . . . but theres a lot more to Warhammer than just one game! The story continues with Munchkin Warhammer Age of Sigmar. The Eight Realms of Age of Sigmar form a new battleground for Munchkin players to explore... by which we mean kill monsters and take their stuff, obviously.